/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0220b.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 01:02:47,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 01:02:47,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 01:02:47,499 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 01:02:47,499 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 01:02:47,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 01:02:47,503 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 01:02:47,505 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 01:02:47,508 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 01:02:47,509 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 01:02:47,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 01:02:47,512 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 01:02:47,512 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 01:02:47,513 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 01:02:47,515 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 01:02:47,516 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 01:02:47,517 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 01:02:47,518 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 01:02:47,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 01:02:47,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 01:02:47,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 01:02:47,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 01:02:47,553 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 01:02:47,560 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 01:02:47,567 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 01:02:47,567 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 01:02:47,568 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 01:02:47,569 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 01:02:47,570 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 01:02:47,575 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 01:02:47,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 01:02:47,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 01:02:47,578 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 01:02:47,579 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 01:02:47,581 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 01:02:47,581 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 01:02:47,582 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 01:02:47,582 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 01:02:47,582 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 01:02:47,583 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 01:02:47,584 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 01:02:47,586 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-27 01:02:47,621 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 01:02:47,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 01:02:47,623 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 01:02:47,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 01:02:47,623 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 01:02:47,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 01:02:47,624 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 01:02:47,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 01:02:47,624 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 01:02:47,625 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 01:02:47,625 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 01:02:47,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 01:02:47,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 01:02:47,625 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 01:02:47,626 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 01:02:47,626 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 01:02:47,626 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 01:02:47,626 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 01:02:47,627 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 01:02:47,627 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 01:02:47,627 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 01:02:47,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:02:47,628 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 01:02:47,628 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 01:02:47,628 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 01:02:47,628 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 01:02:47,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 01:02:47,629 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 01:02:47,629 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 01:02:47,629 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 01:02:48,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 01:02:48,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 01:02:48,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 01:02:48,191 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 01:02:48,192 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 01:02:48,193 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0220b.c [2020-10-27 01:02:48,284 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1ca223e84/cecb6aff77234d3982ddb90673f4b5b4/FLAG903443aee [2020-10-27 01:02:49,072 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 01:02:49,072 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-newlib/float_req_bl_0220b.c [2020-10-27 01:02:49,084 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1ca223e84/cecb6aff77234d3982ddb90673f4b5b4/FLAG903443aee [2020-10-27 01:02:49,319 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1ca223e84/cecb6aff77234d3982ddb90673f4b5b4 [2020-10-27 01:02:49,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 01:02:49,333 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 01:02:49,335 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 01:02:49,335 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 01:02:49,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 01:02:49,342 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:02:49" (1/1) ... [2020-10-27 01:02:49,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6549692b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:02:49, skipping insertion in model container [2020-10-27 01:02:49,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 01:02:49" (1/1) ... [2020-10-27 01:02:49,356 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 01:02:49,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 01:02:49,826 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:02:49,868 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 01:02:50,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 01:02:50,122 INFO L208 MainTranslator]: Completed translation [2020-10-27 01:02:50,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:02:50 WrapperNode [2020-10-27 01:02:50,123 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 01:02:50,125 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 01:02:50,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 01:02:50,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 01:02:50,140 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:02:50" (1/1) ... [2020-10-27 01:02:50,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:02:50" (1/1) ... [2020-10-27 01:02:50,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:02:50" (1/1) ... [2020-10-27 01:02:50,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:02:50" (1/1) ... [2020-10-27 01:02:50,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:02:50" (1/1) ... [2020-10-27 01:02:50,299 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:02:50" (1/1) ... [2020-10-27 01:02:50,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:02:50" (1/1) ... [2020-10-27 01:02:50,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 01:02:50,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 01:02:50,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 01:02:50,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 01:02:50,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:02:50" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 01:02:50,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 01:02:50,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 01:02:50,435 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 01:02:50,436 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2020-10-27 01:02:50,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2020-10-27 01:02:50,436 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2020-10-27 01:02:50,437 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2020-10-27 01:02:50,437 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2020-10-27 01:02:50,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_rem_pio2f [2020-10-27 01:02:50,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_rem_pio2f [2020-10-27 01:02:50,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_sinf [2020-10-27 01:02:50,438 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_cosf [2020-10-27 01:02:50,438 INFO L138 BoogieDeclarations]: Found implementation of procedure sin_float [2020-10-27 01:02:50,439 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 01:02:50,439 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 01:02:50,440 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 01:02:50,440 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 01:02:50,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 01:02:50,440 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2020-10-27 01:02:50,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-27 01:02:50,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 01:02:50,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 01:02:50,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 01:02:50,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-27 01:02:50,441 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2020-10-27 01:02:50,442 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2020-10-27 01:02:50,442 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2020-10-27 01:02:50,442 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2020-10-27 01:02:50,442 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_rem_pio2f [2020-10-27 01:02:50,442 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_rem_pio2f [2020-10-27 01:02:50,442 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_sinf [2020-10-27 01:02:50,443 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_cosf [2020-10-27 01:02:50,443 INFO L130 BoogieDeclarations]: Found specification of procedure sin_float [2020-10-27 01:02:50,443 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 01:02:50,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 01:02:50,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 01:02:50,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-27 01:02:50,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 01:02:52,427 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 01:02:52,427 INFO L298 CfgBuilder]: Removed 61 assume(true) statements. [2020-10-27 01:02:52,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:02:52 BoogieIcfgContainer [2020-10-27 01:02:52,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 01:02:52,432 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 01:02:52,432 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 01:02:52,436 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 01:02:52,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 01:02:49" (1/3) ... [2020-10-27 01:02:52,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70bdf65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:02:52, skipping insertion in model container [2020-10-27 01:02:52,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 01:02:50" (2/3) ... [2020-10-27 01:02:52,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70bdf65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 01:02:52, skipping insertion in model container [2020-10-27 01:02:52,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 01:02:52" (3/3) ... [2020-10-27 01:02:52,440 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0220b.c [2020-10-27 01:02:52,453 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 01:02:52,459 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 01:02:52,473 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 01:02:52,515 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 01:02:52,515 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 01:02:52,516 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 01:02:52,516 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 01:02:52,516 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 01:02:52,516 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 01:02:52,517 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 01:02:52,517 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 01:02:52,556 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states. [2020-10-27 01:02:52,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-27 01:02:52,564 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:02:52,565 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:02:52,566 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:02:52,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:02:52,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1914146373, now seen corresponding path program 1 times [2020-10-27 01:02:52,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:02:52,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1814239398] [2020-10-27 01:02:52,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:02:52,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:02:53,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:02:53,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:02:53,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-27 01:02:53,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:02:53,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 386 [2020-10-27 01:02:53,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:02:53,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:02:53,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 01:02:53,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:02:53,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 01:02:53,751 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2020-10-27 01:02:53,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 01:02:53,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:02:53,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:02:53,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:02:53,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 01:02:53,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:02:53,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-27 01:02:53,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:02:53,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:02:53,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 01:02:53,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:02:53,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 01:02:53,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 01:02:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 01:02:53,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 01:02:53,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 01:02:53,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 01:02:53,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 01:02:53,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 01:02:53,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 01:02:53,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 01:02:53,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-27 01:02:53,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 01:02:53,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 01:02:53,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 01:02:53,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1814239398] [2020-10-27 01:02:53,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 01:02:53,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 01:02:53,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673577284] [2020-10-27 01:02:53,996 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-27 01:02:53,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 01:02:54,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-27 01:02:54,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-27 01:02:54,016 INFO L87 Difference]: Start difference. First operand 281 states. Second operand 4 states. [2020-10-27 01:02:54,334 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2020-10-27 01:02:56,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 01:02:56,292 INFO L93 Difference]: Finished difference Result 551 states and 887 transitions. [2020-10-27 01:02:56,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-27 01:02:56,294 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-27 01:02:56,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 01:02:56,309 INFO L225 Difference]: With dead ends: 551 [2020-10-27 01:02:56,310 INFO L226 Difference]: Without dead ends: 274 [2020-10-27 01:02:56,318 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-27 01:02:56,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-10-27 01:02:56,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2020-10-27 01:02:56,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-10-27 01:02:56,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 371 transitions. [2020-10-27 01:02:56,407 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 371 transitions. Word has length 19 [2020-10-27 01:02:56,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 01:02:56,408 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 371 transitions. [2020-10-27 01:02:56,408 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-27 01:02:56,408 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 371 transitions. [2020-10-27 01:02:56,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-27 01:02:56,410 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 01:02:56,410 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 01:02:56,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 01:02:56,410 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 01:02:56,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 01:02:56,411 INFO L82 PathProgramCache]: Analyzing trace with hash -110490788, now seen corresponding path program 1 times [2020-10-27 01:02:56,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 01:02:56,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1361543533] [2020-10-27 01:02:56,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 01:02:56,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 01:02:56,542 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 01:02:56,542 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 01:02:56,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 01:02:56,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 01:02:56 BoogieIcfgContainer [2020-10-27 01:02:56,570 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 01:02:56,572 INFO L168 Benchmark]: Toolchain (without parser) took 7246.80 ms. Allocated memory was 155.2 MB in the beginning and 198.2 MB in the end (delta: 43.0 MB). Free memory was 129.3 MB in the beginning and 101.6 MB in the end (delta: 27.7 MB). Peak memory consumption was 71.5 MB. Max. memory is 8.0 GB. [2020-10-27 01:02:56,573 INFO L168 Benchmark]: CDTParser took 0.74 ms. Allocated memory is still 155.2 MB. Free memory is still 127.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 01:02:56,574 INFO L168 Benchmark]: CACSL2BoogieTranslator took 788.59 ms. Allocated memory is still 155.2 MB. Free memory was 128.7 MB in the beginning and 132.3 MB in the end (delta: -3.6 MB). Peak memory consumption was 30.3 MB. Max. memory is 8.0 GB. [2020-10-27 01:02:56,575 INFO L168 Benchmark]: Boogie Preprocessor took 216.10 ms. Allocated memory is still 155.2 MB. Free memory was 132.3 MB in the beginning and 125.0 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. [2020-10-27 01:02:56,576 INFO L168 Benchmark]: RCFGBuilder took 2088.63 ms. Allocated memory was 155.2 MB in the beginning and 198.2 MB in the end (delta: 43.0 MB). Free memory was 125.0 MB in the beginning and 164.2 MB in the end (delta: -39.3 MB). Peak memory consumption was 87.1 MB. Max. memory is 8.0 GB. [2020-10-27 01:02:56,576 INFO L168 Benchmark]: TraceAbstraction took 4138.12 ms. Allocated memory is still 198.2 MB. Free memory was 164.2 MB in the beginning and 101.6 MB in the end (delta: 62.6 MB). Peak memory consumption was 62.1 MB. Max. memory is 8.0 GB. [2020-10-27 01:02:56,580 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74 ms. Allocated memory is still 155.2 MB. Free memory is still 127.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 788.59 ms. Allocated memory is still 155.2 MB. Free memory was 128.7 MB in the beginning and 132.3 MB in the end (delta: -3.6 MB). Peak memory consumption was 30.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 216.10 ms. Allocated memory is still 155.2 MB. Free memory was 132.3 MB in the beginning and 125.0 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2088.63 ms. Allocated memory was 155.2 MB in the beginning and 198.2 MB in the end (delta: 43.0 MB). Free memory was 125.0 MB in the beginning and 164.2 MB in the end (delta: -39.3 MB). Peak memory consumption was 87.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4138.12 ms. Allocated memory is still 198.2 MB. Free memory was 164.2 MB in the beginning and 101.6 MB in the end (delta: 62.6 MB). Peak memory consumption was 62.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 628, overapproximation of someUnaryDOUBLEoperation at line 507, overapproximation of bitwiseAnd at line 594, overapproximation of someUnaryFLOAToperation at line 624, overapproximation of someBinaryArithmeticFLOAToperation at line 599. Possible FailurePath: [L13] static const float huge_floor = 1.0e30; [L90-L92] static const float two25_scalbn = 3.355443200e+07, twom25_scalbn = 2.9802322388e-08, huge_scalbn = 1.0e+30, tiny_scalbn = 1.0e-30; [L165] static const int init_jk_krempio[] = {4, 7, 9}; [L167-L171] static const float PIo2_krempio[] = { 1.5703125000e+00, 4.5776367188e-04, 2.5987625122e-05, 7.5437128544e-08, 6.0026650317e-11, 7.3896444519e-13, 5.3845816694e-15, 5.6378512969e-18, 8.3009228831e-20, 3.2756352257e-22, 6.3331015649e-25, }; [L173-L175] static const float zero_krempio = 0.0, one_krempio = 1.0, two8_krempio = 2.5600000000e+02, twon8_krempio = 3.9062500000e-03; [L350-L368] static const __int32_t two_over_pi_rempio[] = { 0xA2, 0xF9, 0x83, 0x6E, 0x4E, 0x44, 0x15, 0x29, 0xFC, 0x27, 0x57, 0xD1, 0xF5, 0x34, 0xDD, 0xC0, 0xDB, 0x62, 0x95, 0x99, 0x3C, 0x43, 0x90, 0x41, 0xFE, 0x51, 0x63, 0xAB, 0xDE, 0xBB, 0xC5, 0x61, 0xB7, 0x24, 0x6E, 0x3A, 0x42, 0x4D, 0xD2, 0xE0, 0x06, 0x49, 0x2E, 0xEA, 0x09, 0xD1, 0x92, 0x1C, 0xFE, 0x1D, 0xEB, 0x1C, 0xB1, 0x29, 0xA7, 0x3E, 0xE8, 0x82, 0x35, 0xF5, 0x2E, 0xBB, 0x44, 0x84, 0xE9, 0x9C, 0x70, 0x26, 0xB4, 0x5F, 0x7E, 0x41, 0x39, 0x91, 0xD6, 0x39, 0x83, 0x53, 0x39, 0xF4, 0x9C, 0x84, 0x5F, 0x8B, 0xBD, 0xF9, 0x28, 0x3B, 0x1F, 0xF8, 0x97, 0xFF, 0xDE, 0x05, 0x98, 0x0F, 0xEF, 0x2F, 0x11, 0x8B, 0x5A, 0x0A, 0x6D, 0x1F, 0x6D, 0x36, 0x7E, 0xCF, 0x27, 0xCB, 0x09, 0xB7, 0x4F, 0x46, 0x3F, 0x66, 0x9E, 0x5F, 0xEA, 0x2D, 0x75, 0x27, 0xBA, 0xC7, 0xEB, 0xE5, 0xF1, 0x7B, 0x3D, 0x07, 0x39, 0xF7, 0x8A, 0x52, 0x92, 0xEA, 0x6B, 0xFB, 0x5F, 0xB1, 0x1F, 0x8D, 0x5D, 0x08, 0x56, 0x03, 0x30, 0x46, 0xFC, 0x7B, 0x6B, 0xAB, 0xF0, 0xCF, 0xBC, 0x20, 0x9A, 0xF4, 0x36, 0x1D, 0xA9, 0xE3, 0x91, 0x61, 0x5E, 0xE6, 0x1B, 0x08, 0x65, 0x99, 0x85, 0x5F, 0x14, 0xA0, 0x68, 0x40, 0x8D, 0xFF, 0xD8, 0x80, 0x4D, 0x73, 0x27, 0x31, 0x06, 0x06, 0x15, 0x56, 0xCA, 0x73, 0xA8, 0xC9, 0x60, 0xE2, 0x7B, 0xC0, 0x8C, 0x6B, }; [L370-L376] static const __int32_t npio2_hw_rempio[] = { 0x3fc90f00, 0x40490f00, 0x4096cb00, 0x40c90f00, 0x40fb5300, 0x4116cb00, 0x412fed00, 0x41490f00, 0x41623100, 0x417b5300, 0x418a3a00, 0x4196cb00, 0x41a35c00, 0x41afed00, 0x41bc7e00, 0x41c90f00, 0x41d5a000, 0x41e23100, 0x41eec200, 0x41fb5300, 0x4203f200, 0x420a3a00, 0x42108300, 0x4216cb00, 0x421d1400, 0x42235c00, 0x4229a500, 0x422fed00, 0x42363600, 0x423c7e00, 0x4242c700, 0x42490f00}; [L378-L387] static const float zero_rempio = 0.0000000000e+00, half_rempio = 5.0000000000e-01, two8_rempio = 2.5600000000e+02, invpio2_rempio = 6.3661980629e-01, pio2_1_rempio = 1.5707855225e+00, pio2_1t_rempio = 1.0804334124e-05, pio2_2_rempio = 1.0804273188e-05, pio2_2t_rempio = 6.0770999344e-11, pio2_3_rempio = 6.0770943833e-11, pio2_3t_rempio = 6.1232342629e-17; [L507-L510] static const float half_ksin = 5.0000000000e-01, S1_ksin = -1.6666667163e-01, S2_ksin = 8.3333337680e-03, S3_ksin = -1.9841270114e-04, S4_ksin = 2.7557314297e-06, S5_ksin = -2.5050759689e-08, S6_ksin = 1.5896910177e-10; [L534-L537] static const float one_kcos = 1.0000000000e+00, C1_kcos = 4.1666667908e-02, C2_kcos = -1.3888889225e-03, C3_kcos = 2.4801587642e-05, C4_kcos = -2.7557314297e-07, C5_kcos = 2.0875723372e-09, C6_kcos = -1.1359647598e-11; [L574-L582] static const float one_ktan = 1.0000000000e+00, pio4_ktan = 7.8539812565e-01, pio4lo_ktan = 3.7748947079e-08, T_ktan[] = { 3.3333334327e-01, 1.3333334029e-01, 5.3968254477e-02, 2.1869488060e-02, 8.8632395491e-03, 3.5920790397e-03, 1.4562094584e-03, 5.8804126456e-04, 2.4646313977e-04, 7.8179444245e-05, 7.1407252108e-05, -1.8558637748e-05, 2.5907305826e-05, }; [L624] float x = -0.0f; [L625] CALL, EXPR sin_float(x) [L585] float y[2], z = 0.0; [L586] __int32_t n, ix; [L589] ieee_float_shape_type gf_u; [L590] gf_u.value = (x) [L591] EXPR gf_u.word [L591] (ix) = gf_u.word [L594] ix &= 0x7fffffff [L595] COND FALSE !(ix <= 0x3f490fd8) [L598] COND TRUE !((ix) < 0x7f800000L) [L599] return x - x; [L599] return x - x; [L625] RET, EXPR sin_float(x) [L625] float res = sin_float(x); [L628] EXPR res == -0.0f && __signbit_float(res) == 1 [L628] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L629] CALL reach_error() [L3] __assert_fail("0", "float_req_bl_0220b.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 14 procedures, 281 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 364 SDtfs, 18 SDslu, 280 SDs, 0 SdLazy, 421 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=281occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 3510 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...